Published in Botanical Gazette, in 1919, in volume 68, issue 2, pages 73-108
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Published in Jour Washington Acad Sci, in 1941, in volume 31, pages 173-179
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Published in Jour Washington Acad Sci, in 1950, in volume 40, pages 273-277
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Published in Proceedings of The United States National Museum, in 1911, in volume 41, pages 209-224
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Published in Proceedings of the United States National Museum, in 1927, in volume 69, issue 2640, pages 1-42
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Published in Proceedings of The United States National Museum, in 1941, in volume 91, pages 91-102
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Published in Proceedings of The United States National Museum, in 1911, in volume 39, pages 497-527
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Published in Proceedings of The United States National Museum, in 1922, in volume 61, pages 1-160
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Published in Journal of The Washington Academy of Sciences, in 1936, in volume 26, issue 4, pages 156-162
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Published in United States National Museum Bulletin, in 1923, in volume 125, pages 1-302
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Published in United States National Museum Bulletin, in 1933, in volume 165, pages 1-108
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Published in Asa Gray correspondence. Senders Ha, 1835-1895 (inclusive), in 1885, pages 1-2
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Published in Proceedings of the United States National Museum, in 1930, in volume 76, pages 1-78
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Published in United States National Museum Bulletin, in 1917, in volume 96, pages 1-87
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Published in Botanical Gazette, in 1908, in volume 46, issue 1, pages 71-72
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Published in Proceedings of The United States National Museum, in 1913, in volume 46, pages 57-59
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Published in Botanical Gazette, in 1883, in volume 8, issue 12, pages 355-356
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Published in Proceedings of The United States National Museum, in 1908, in volume 34, pages 407-432
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Published in Biol Bull, in 1939, in volume 77, pages 74-78
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Published in Phytologia, in 1970, in volume 20, issue 5, pages 315-323
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Published in Rhodora, in 1903, in volume 5, issue 54, pages 169
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Published in Botanical Gazette, in 1880, in volume 5, issue 4, pages 39
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Published in Botanical Gazette, in 1881, in volume 6, issue 5, pages 215
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Published in Botanical Gazette, in 1882, in volume 7, issue 5, pages 57-58
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Published in Botanical Gazette, in 1886, in volume 11, issue 7, pages 184-185
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Published in Botanical Gazette, in 1887, in volume 12, issue 5, pages 113-114
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Published in Botanical Gazette, in 1917, in volume 64, issue 4, pages 342
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Published in The Wilson Bulletin, in 1944, in volume 56, issue 3, pages 177
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Published in Proceedings of The United States National Museum, in 1941, in volume 89, pages 519-522
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Published in Proceedings of The United States National Museum, in 1906, in volume 30, pages 1-66
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Published in Proceedings of The United States National Museum, in 1908, in volume 35, pages 133-154
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Published in Scopus, in 1998, in volume 20, pages 48-51
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Published in Rhodora, in 1900, in volume 2, issue 22, pages 211-212
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Published in Botanical Gazette, in 1882, in volume 7, issue 5, pages 54-57
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Published in Botanical Gazette, in 1887, in volume 12, issue 9, pages 219-221
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Published in Botanical Gazette, in 1919, in volume 67, issue 5, pages 441-444
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Published in Madroño, in 1943, in volume 7, issue 4, pages 100-110
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Published in Biol Bull, in 1934, in volume 66, pages 91-96
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Published in Canadian Entomologist, in 1876, in volume 8, pages 35-38
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Published in Annals And Magazine of Natural History, in 1864, in volume 13, pages 184
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Published in Rhodora, in 1940, in volume 42, issue 501, pages 352-354
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Published in The Wilson Bulletin, in 1899, in volume 11, issue 4, pages 76
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Published in Phytologia, in 1993, in volume 74, issue 5, pages 356-366
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Published in Botanical Gazette, in 1880, in volume 5, issue 11, pages 139-140
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Published in Botanical Gazette, in 1882, in volume 7, issue 1, pages 12
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Published in Botanical Gazette, in 1882, in volume 7, issue 7, pages 88
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Published in Botanical Gazette, in 1886, in volume 11, issue 4, pages 88-90
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Published in Madroño, in 1932, in volume 2, issue 7, pages 63
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Published in The Wilson Bulletin, in 1957, in volume 69, issue 2, pages 170-177
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Published in Madroño, in 1951, in volume 11, issue 4, pages 162-171
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